US892904A - Mining-machine. - Google Patents

Description

No. 892,904. .PATENTED JULY '7 1908.

R. D. SEGOY. MINING MACHINE.

APPLICATION FILED MAR.29.1907.

2 SHEETS-SHEET Z.

Svwentoz fig ENEE N E m E N s 1x11 in eases R'UFUSD. sEcoY, or ATHENS, orno'.

mnme-imomnn. A

Specification of Ii'etters I'atent. Application filed. March 29, 1907. Serial a. 365,319.;

Patented Jui y, 1908. 1

To all whomitmdy concern:

Be it known that I, RUF S D.,SEooY, citizen of the United States, residing at Athens,

in thecounty of Athens and State of Ohio,

have invented certain new and useful'jlmprovements' in,'Mining-Machines, of which the following is a specification;

This invention relates to apparatus designed most especially for mimng coal although'it may be used in connection with drilling rock or for mining operations generally in which the machinesembody a support,

an adjustable frame, a drill and operating mechanism for actuating the drill.

For a fulldescription of the invention and the merits thereof and also to acquire a knowledge of the details of construction andthe means for effecting the result reference of the support.

I piece 2 is is to be had to the following description-and accom anying drawings.

Whi e the invention may be adapted to different forms and conditions bychanges in the structure and minor details without do:

partin from the spirit or essential features thereo, still the preferred embodiment is shown in the accompanying drawings, in.

which.

Figure 1 is a front view of the support for the drilling mechanism. Fig. 2 is a side view Fig. 3 is a side view of the support aving the drilling mechanism in osition, the lower portion of the support lieing broken away. Fig. 4 is a side view of the drilling mechanism. Fig. 5 is a top plan view of the drillin mechanism, an end portion of. the drill s aft being broken away. Fi 6 is a central longitudinal section of the dril frame showing the drill shaft and gearing in full. Fig. 7 is a transverse section on the line x-m of Fig. 6 showing the parts on a larger scale.

Corresponding and like parts are referred to in the followin description and indicated in all the views of the drawings by the same reference characters.

The support comprises arallel bars 1 and connecting pieces 2 an 3. The parts 2 and 3 are recessed in their ends to form seats in which the bars 1 are fitted, the latter being secured to the connecting pieces by means of machine screws 4, thereby admitting of the parts being readily se arated when required for any purpose. he end provided at acentral point with an interna ly threaded opening 5 in which is ,fitted a screw 6, the latter having itsuprest and adapte position of the parts bein perend pointed so as to penetrate a side of the'passage or opening in which the machine may 'be located. The screw 6 may be turned in any manner,- preferably by means "of a bar 7passed transversely through an opening formed therein. The connecting piece 3 ispr'ovided at a central point with an'opening in which is slidably mounted a bar 8 which is pointed at its lower end and provided at its upper end with an extension 9 to receive the pressureor force applied for driving the point of the bar 8 into thewall or side of the passage or opening of the mine in which the machine may be 170 placed. A series of teeth 10 are provided along one edge of the bar 8 and are adapted to be engaged by a'dog 11 to hold the -bar.

dog 11 and spring 12 are secured to the 'connecting piece 3. A-rest 13'isadjustable on" the support and is of approximately 'U form, its end portions havin openings to receive the bars 1, said rest eing secured to the bars by means of set screws 14 threaded into o enings in the ends. of the to bear at their inner ends against the bars 1'. The side members of the U-shaped rest 13 extend upward along the inner sides of the bars 1 and are provided in their upper ends with notches 15 forming bearings to receive the trunnions 16 of the" drill frame. Upon loosening the set screws, 14, the rest'may be moved, up or down upon the bars 1 of the support according to the required elevation of the drill, the

fixed by retightening said set screws. he drill frame comprises two parts 17 and 18 which are separablehorizontally upon a plane passed through the axis of the shaft 19 provided with the drill or other boring tool. The parts 17-and 18 are pivotally connected at- 20 and are adapted to be secured in any substantial way. Lugs 21 project from opposite sides of one of the parts or sections as 17 and embrace o)p"osite sides of the other part or section an project beyond the same and are-transversely apertured to receive a key 22 which engages with the drill shaft 19, feed nut and operating gear ing. The-trunnio'ns ,16 are formed upon one of the parts, as 17. 'The feed nut 23 is composed of similar longitudinal sections which are arranged within the respective parts 17 and 18 of the drill frame and .Which are secured to said parts by machine screws 24 or like fastenings.

exteriorly threaded and passes throu h the feed nut 23 and is provided at one end with a socket 25 for receiving the drill other boring tool, and is adapted to have a crank 26 fitted to its opposite end. An oblique toothed spur gear 27 receives the drill shaft 19 which passes loosely therethrough, the two being connected by a feather and spline to cause them to rotate together, while at the same time admitting of the drill shaft moving longitudinally through the said gear. A second oblique toothed spur gear 28 meshes with the gear 27 and is located in an extension 29 of the drill frame and is housed thereby. A shaft 3f) is keyed to the oblique toothed spur gear 28 and-is mountedin bearings at opposite sides of the extension 29 of said drill frame,

the projecting ends of the shaft 30 receiving cranks 31 by means of which the gear 28 is rotated and the drill shaft 19 operated through the intervening oblique toothed spur gear 27. The drill frame is of such construction as to completely house the feed nut and gearing, thereby protecting the same and reducing the chances for grit and dust reaching the wearing parts.

A slide 32 is adjustable upon the support and is held in the required position by means of a set screw slide 32 with an endportion of the drill frame, hence the drill may be moved to any inclination and secured by clamping the slide 32 to the support.

When the apparatus is in position, the sup port is fixed by having the points of the screw 6 and bar 8 forced into opposite sides of the passage, or drift in which the mining o erations are conducted. The drill frame w ien placed in position has its trunnions 16 fitted in the notches or bearings 15 of the rest 13, the elevation of the drill being fixed by moving the rest 13 to the required point upon the support and securing it to the lat ter. The drill frame may be inclined or is The drill shaft 19' is A link 34 connects the held in a horizontal position by securing the slide 32 to the support in the required position. lltotary motion may be imparted to the drill shaft'either by fitting a crank to the end thereof and applying power thereto or by operating the cranks 31. As the drill shaft is rotated, it is at the same time fed forward by the thread thereof cooperating with the thread of the feed nut 23. The drill shaft may be quickly moved either forward or backward by removing the key 22 and separating the parts 1'7 an 18 .of the drill frame, thereby parting the feed nut 23 after which tl. shaft 19 may be moved freely through the oblique toothed spur gear 27 to the re.

quired point, after which the parts 17 and 18 of the drill frame are closed and secured by replacing the key 22.

Having thus described the invention, what is claimed as new is:

1. in mining machine, the combination of a support, a rest carried by the support, a drill frame mount-ed upon the rest and comprising longitudinally separable members hinged at one of their longitudinal ends, lugs projecting from opposite longitudinal sides of one of the members and embracing the oppositememher, a key cooperating with. the lugs to lock ,lhe members together, a sectional feed nut arranged within the longitudinal separable members, a drill shaft threaded within the feed nut, and means for turning the drill shaft.

In a mining machine a drill frame com prising longitudinally separable parts hinged at one of their longitudinal ends, means for locking-the longitudinally separable parts together, a drill shaft journaled within the drill frame, an oblique toothed spur gear mounted uponithe drill shaft, and a second oblique toothed spur gear cooperating with the first mentioned oblique toothed spur gear to retate the shaft, the said gearing being housed within the drill frame.

in testimony whereof I affix my signature 1n presence of two witnesses.

RUFUS D. SECOY.

/Vitnesses JEssE Fmsrnnwarn, G. H. 3030.

Images